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With reference to the alluvial soils of India, consider the following statements:
1. They are depositional soils, transported and deposited by rivers and streams.
2. They are generally rich in phosphorus but poor in potash.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
With reference to the alluvial soils of India, consider the following ...
Statement 1: They are depositional soils, transported and deposited by rivers and streams.
Alluvial soils are indeed depositional soils, meaning they are formed by the deposition of sediments carried and deposited by rivers and streams. These sediments are typically transported from the mountains and highlands through the process of erosion and then deposited in the floodplains and deltas. The deposition of these sediments over time results in the formation of alluvial soils.
Statement 2: They are generally rich in phosphorus but poor in potash.
This statement is incorrect. Alluvial soils are generally rich in both phosphorus and potash. Phosphorus is an important nutrient for plant growth as it plays a vital role in processes such as photosynthesis, energy transfer, and root development. Potash, which refers to various potassium compounds, is also essential for plant growth as it helps in the regulation of water movement, enzyme activation, and the synthesis of proteins and carbohydrates. Therefore, alluvial soils, which are formed by the deposition of sediments from rivers and streams, tend to be rich in both phosphorus and potash.
Conclusion:
In conclusion, statement 1 is correct as alluvial soils are indeed depositional soils, transported and deposited by rivers and streams. However, statement 2 is incorrect as alluvial soils are generally rich in both phosphorus and potash. Therefore, the correct answer is option 'A' - 1 only.
Alluvial soils are indeed depositional soils, meaning they are formed by the deposition of sediments carried and deposited by rivers and streams. These sediments are typically transported from the mountains and highlands through the process of erosion and then deposited in the floodplains and deltas. The deposition of these sediments over time results in the formation of alluvial soils.
Statement 2: They are generally rich in phosphorus but poor in potash.
This statement is incorrect. Alluvial soils are generally rich in both phosphorus and potash. Phosphorus is an important nutrient for plant growth as it plays a vital role in processes such as photosynthesis, energy transfer, and root development. Potash, which refers to various potassium compounds, is also essential for plant growth as it helps in the regulation of water movement, enzyme activation, and the synthesis of proteins and carbohydrates. Therefore, alluvial soils, which are formed by the deposition of sediments from rivers and streams, tend to be rich in both phosphorus and potash.
Conclusion:
In conclusion, statement 1 is correct as alluvial soils are indeed depositional soils, transported and deposited by rivers and streams. However, statement 2 is incorrect as alluvial soils are generally rich in both phosphorus and potash. Therefore, the correct answer is option 'A' - 1 only.
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Community Answer
With reference to the alluvial soils of India, consider the following ...
- Alluvial soils are widespread in the northern plains and the river valleys. These soils cover about 40 percent of the total area of the country. They are depositional soils, transported and deposited by rivers and streams. Hence statement 1 is correct.
- The alluvial soils vary in nature from sandy loam to clay. They are generally rich in potash but poor in phosphorous. Hence statement 2 is not correct.
- In the Upper and Middle Ganga plain, two different types of alluvial soils have developed, viz. Khadar and Bhangar. Khadar is the new alluvium and is deposited by floods annually, which enriches the soil by depositing fine silts.
- Bhangar represents a system of older alluvium, deposited away from the flood plains. Both the Khadar and Bhangar soils contain calcareous concretions (Kankars). These soils are more loamy and clayey in the lower and middle Ganga plain and the Brahmaputra valley.
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With reference to the alluvial soils of India, consider the following statements:1. They are depositional soils, transported and deposited by rivers and streams.2. They are generally rich in phosphorus but poor in potash.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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